Lantern



9 PATENT GFFICE.

nIcnAnDL. HULL, or MERIDEN, oonnnoricur.

LANTERN.

SPECIFICATION forming partof Letters Patent No. 289,348, dated November 27, i883.`

Application filed Marclr 15, 1883.` (No model.) i

T0 a/ZZ whom it may concern:

Be it known that I, RICHARD L. HULL, of Meriden, in the countyof New Haven and State of Connecticut, have invented a new and useful Improvement in Lanterns; and I hereby declare the following to be a full, clear, and

exact description of the same, reference being had to the accompanying drawings, forming a part of this specification.

.This invention has reference to an improve ment in the construction of portable lanterns; and it consists in the peculiar and novel construction, with the lantern, of the oil-chamber, and the manner of securing the same, as will be more fully set forth hereinafter.

In portable lanterns the oil-receptacle or lamp is usually made separate from the frame of the lantern, so that it can be readily removed, relled, trimmed, lighted, and replaced. As such lanterns are specially used in stables, warehouses, and other places where the nature of the contents make the risk of re specially hazardous, it is important that the connection between' the lamp` and lantern should be secure, firm, and not liable to become loose. A bayonet connection has heretofore been used to connect the lamp, but the projecting pins have to be secured by solder at the ends, makingthis a weak and uncertain connection.

In my improved lantern I forma coarse screw-thread on the body of the lamp and on the flanged bottom of the lantern, and place an annular ring on the lamp provided with a locking-notch, and construct a spring-pressed latch to enter the locking-notch and hold the lamp, thus making a iirm connection not liable to separate.

Figure 1 is a view of my improved lantern, the connection of the oil-reservoir or lamp with the lantern being shown in section. Fig. 2 is a bottom view of the lantern, showing the spring-latch for holding the lamp against rotation.

In the drawings, A A is the metal framevwork of the lantern. B is the glass inclosing the lamp. `C is the bottom; D, a circular flange formed into a nut or female screw-thread, into which the lamp E, provided with the screwthread e, is screwed, asis shown in Fig. l. The screw-thread 'e may be formed on the to be entered the hook of the springhis placedin the corner against the shoulder g, thus forming a guide for entering the screw on the lamp l into the nut formed on the bottom. By turn- `ing the lamp the screw at once engages, and when it is fully entered the spring-latch enters the notch f, and rmly holds the same in place. Instead of the spring-latch h any other form of spring-latch may be used. The screw-thread c is shown continuous; but it may be constructed. in sections-that is to say, the circumference may be divided into four. or siX parts, and two or three, as the case may be, of the parts be formed into screw-threads, while the otherparts are recessed so that the alternate screw-threads on the lamp will enter the recessed spaces in the flange D, and the onesiXth or one-fourth turning of the lamp will se cure the same with any desired number of screw-threads, so that the lamp can be more rmly secured and yet more quickly removed than with a continuous screw-thread. When the sectional screw is used, the ring F is provided with two or three notches, f,so as to lock the lamp against rotation.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, with the frame A, the bottom C, and the threaded flange D, of the lamp E, provided with the screw-threads, construct-.T

ed to enter the threaded flange, the ring F, provided with the notch f, and a latch constructed to enter the notch on the ring F and se-` cure the lamp against rotation, as described.

In witness whereof I have hereunto set my hand.

RICHARD L. HULL.

VVitnesSes:

J. A. MILLER, Jr., J. O. Bons. 

